x+30=2x-15

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Solution for x+30=2x-15 equation: 



x+30=2x-15

We move all terms to the left:

x+30-(2x-15)=0

We get rid of parentheses

x-2x+15+30=0

We add all the numbers together, and all the variables

-1x+45=0

We move all terms containing x to the left, all other terms to the right

-x=-45

x=-45/-1

x=+45

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